﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;

namespace el.DAL
{
	/// <summary>
	/// 数据访问类:Sys_Role
	/// </summary>
	public partial class Sys_Role
	{
		public Sys_Role()
		{}
		#region  Method

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("RoleID", "Sys_Role"); 
		}

		/// <summary>
		/// 是否存在该记录

		/// </summary>
		public bool Exists(int RoleID)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from Sys_Role");
			strSql.Append(" where RoleID=@RoleID");
			SqlParameter[] parameters = {
					new SqlParameter("@RoleID", SqlDbType.Int,4)
};
			parameters[0].Value = RoleID;

			return DbHelperSQL.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据

		/// </summary>
		public int Add(el.Model.Sys_Role model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into Sys_Role(");
			strSql.Append("RoleName,Description)");
			strSql.Append(" values (");
			strSql.Append("@RoleName,@Description)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@RoleName", SqlDbType.NVarChar,50),
					new SqlParameter("@Description", SqlDbType.NVarChar,200)};
			parameters[0].Value = model.RoleName;
			parameters[1].Value = model.Description;

			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 更新一条数据

		/// </summary>
		public bool Update(el.Model.Sys_Role model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update Sys_Role set ");
			strSql.Append("RoleName=@RoleName,");
			strSql.Append("Description=@Description");
			strSql.Append(" where RoleID=@RoleID");
			SqlParameter[] parameters = {
					new SqlParameter("@RoleName", SqlDbType.NVarChar,50),
					new SqlParameter("@Description", SqlDbType.NVarChar,200),
					new SqlParameter("@RoleID", SqlDbType.Int,4)};
			parameters[0].Value = model.RoleName;
			parameters[1].Value = model.Description;
			parameters[2].Value = model.RoleID;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据

		/// </summary>
		public bool Delete(int RoleID)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from Sys_Role ");
			strSql.Append(" where RoleID=@RoleID");
			SqlParameter[] parameters = {
					new SqlParameter("@RoleID", SqlDbType.Int,4)
};
			parameters[0].Value = RoleID;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 批量删除数据
		/// </summary>
		public bool DeleteList(string RoleIDlist )
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from Sys_Role ");
			strSql.Append(" where RoleID in ("+RoleIDlist + ")  ");
			int rows=DbHelperSQL.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体

		/// </summary>
		public el.Model.Sys_Role GetModel(int RoleID)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select  top 1 RoleID,RoleName,Description from Sys_Role ");
			strSql.Append(" where RoleID=@RoleID");
			SqlParameter[] parameters = {
					new SqlParameter("@RoleID", SqlDbType.Int,4)
};
			parameters[0].Value = RoleID;

			el.Model.Sys_Role model=new el.Model.Sys_Role();
			DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				if(ds.Tables[0].Rows[0]["RoleID"]!=null && ds.Tables[0].Rows[0]["RoleID"].ToString()!="")
				{
					model.RoleID=int.Parse(ds.Tables[0].Rows[0]["RoleID"].ToString());
				}
				if(ds.Tables[0].Rows[0]["RoleName"]!=null && ds.Tables[0].Rows[0]["RoleName"].ToString()!="")
				{
					model.RoleName=ds.Tables[0].Rows[0]["RoleName"].ToString();
				}
				if(ds.Tables[0].Rows[0]["Description"]!=null && ds.Tables[0].Rows[0]["Description"].ToString()!="")
				{
					model.Description=ds.Tables[0].Rows[0]["Description"].ToString();
				}
				return model;
			}
			else
			{
				return null;
			}
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select RoleID,RoleName,Description ");
			strSql.Append(" FROM Sys_Role ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获得前几行数据

		/// </summary>
		public DataSet GetList(int Top,string strWhere,string filedOrder)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select ");
			if(Top>0)
			{
				strSql.Append(" top "+Top.ToString());
			}
			strSql.Append(" RoleID,RoleName,Description ");
			strSql.Append(" FROM Sys_Role ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			strSql.Append(" order by " + filedOrder);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SqlParameter[] parameters = {
					new SqlParameter("@tblName", SqlDbType.VarChar, 255),
					new SqlParameter("@fldName", SqlDbType.VarChar, 255),
					new SqlParameter("@PageSize", SqlDbType.Int),
					new SqlParameter("@PageIndex", SqlDbType.Int),
					new SqlParameter("@IsReCount", SqlDbType.Bit),
					new SqlParameter("@OrderType", SqlDbType.Bit),
					new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
					};
			parameters[0].Value = "Sys_Role";
			parameters[1].Value = "RoleID";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  Method
	}
}

